Seiko Cal. 4421 - 517

The Seiko 4421-517 represents an important milestone in Seiko's 1969 lineup. Powered by the 4421 caliber with 21j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-e549d38bed93]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1969

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